Festo DRRD-12 ... 63 - Manual (Page 27)

DRRD-12 ... 63
Festo – DRRD-12 ... 63-Z6 – 1310b English 27
8 Maintenance and care
To check the function of the shock absorbers:
• Proceed as follows:
DRRD-... P Y9/Y10/Y12
Test interval 2 million switching cycles 2 million switching cycles
(DRRD-12 … 40)
1 million switching cycles (DRRD-50/63)
Procedure 1. Check the function of the shock
absorbers.
In case of audible bottoming out or
rebounding:
2. Replace the cushioning components
and seals (lubricate the cushioning
components before installation with,
for example, LUB-KC1).
1. Check the function of the shock
absorbers for bottoming out and
rebounding.
2. Unscrew the shock absorber and
check for oil leaks.
In case of audible bottoming out,
rebounding or visible oil loss:
3. Replace the shock absorber and
seals ( 9 Disassembly and repair).
Replacement
interval
If there is evidence of wear (bottoming
out)
If there is evidence of bottoming out,
leaking oil or
every 10 million switching cycles
(DRRD-12 … 40)
Every 5 million switching cycles
(DRRD-50)
Every 2 million switching cycles
(DRRD-63)
Tab. 7
If the piston can be heard to strike hard in the end position:
• Replace the following components if they are worn ( 9 Disassembly and repair):
– the internal cushioning components of the DRRD-...-P
– both shock absorbers of the DRRD-...-Y9/Y10.
• If the DRRD is contaminated, clean it with a soft cloth.
Permissible cleaning agents include:
– warm soap suds up to +60 °C
– petroleum ether
– all non-abrasive cleaning agents.